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Start Over Year 1961 Format cartographic image,text

1. Possible expanded shale resources near Yankton, South Dakota

Yale Public content
1961. 2018-05-14T19:36:47Z. 2018-05-14T19:36:47Z. South Dakota Geological Survey. South Dakota Geological Survey. English. cartographic image,text. Public. South Dakota, Yankton County, Yankton County (S.D.), and Yankton County.

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